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d5872e93fa
The use of state->CH_Ctrl[i].size in a shift operation implies that its value can be as much as 32, but the state->CH_Ctrl[i].val array is only 25 in size. Bounds check the size before shifting and looping. Fixes warnings seen with GCC 13: ../drivers/media/tuners/mxl5005s.c: In function 'MXL_ControlWrite_Group.isra': ../drivers/media/tuners/mxl5005s.c:3450:70: warning: array subscript 32 is above array bounds of 'u16[25]' {aka 'short unsigned int[25]'} [-Warray-bounds=] 3450 | state->CH_Ctrl[i].val[j] = (u8)((value >> j) & 0x01); | ~~~~~~~~~~~~~~~~~~~~~^~~ ../drivers/media/tuners/mxl5005s.c:238:13: note: while referencing 'val' 238 | u16 val[25]; /* Binary representation of Value */ | ^~~ Cc: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> |
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README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.